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module: do not warn for typeless package.json when there isn't one #54045

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merged 1 commit into from
Jul 29, 2024

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It was intended that warnings should only be emitted for an existing package.json without a type. This fixes a confusing warning telling users to update /package.json when there are no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module because module syntax was detected; to avoid the performance penalty of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about reparsing and make it clear what's actionable.

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Review requested:

  • @nodejs/loaders

@nodejs-github-bot nodejs-github-bot added esm Issues and PRs related to the ECMAScript Modules implementation. needs-ci PRs that need a full CI run. labels Jul 25, 2024
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Looks good to me.

It was intended that warnings should only be emitted for an
existing package.json without a type. This fixes a confusing
warning telling users to update /package.json when there are
no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module
because module syntax was detected; to avoid the performance penalty
of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about
reparsing and make it clear what's actionable.
@aduh95 aduh95 added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. request-ci Add this label to start a Jenkins CI on a PR. labels Jul 25, 2024
@github-actions github-actions bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Jul 25, 2024
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lgtm

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@joyeecheung joyeecheung added the commit-queue Add this label to land a pull request using GitHub Actions. label Jul 29, 2024
@nodejs-github-bot nodejs-github-bot removed the commit-queue Add this label to land a pull request using GitHub Actions. label Jul 29, 2024
@nodejs-github-bot nodejs-github-bot merged commit be7a0c5 into nodejs:main Jul 29, 2024
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Landed in be7a0c5

targos pushed a commit that referenced this pull request Jul 30, 2024
It was intended that warnings should only be emitted for an
existing package.json without a type. This fixes a confusing
warning telling users to update /package.json when there are
no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module
because module syntax was detected; to avoid the performance penalty
of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about
reparsing and make it clear what's actionable.

PR-URL: #54045
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@RafaelGSS RafaelGSS mentioned this pull request Jul 30, 2024
@RafaelGSS RafaelGSS added dont-land-on-v18.x PRs that should not land on the v18.x-staging branch and should not be released in v18.x. dont-land-on-v20.x PRs that should not land on the v20.x-staging branch and should not be released in v20.x. dont-land-on-v22.x PRs that should not land on the v22.x-staging branch and should not be released in v22.x. labels Aug 5, 2024
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Adding dont-land labels until #53619 flags are removed too.

@marco-ippolito marco-ippolito removed the dont-land-on-v22.x PRs that should not land on the v22.x-staging branch and should not be released in v22.x. label Aug 26, 2024
marco-ippolito pushed a commit to marco-ippolito/node that referenced this pull request Aug 26, 2024
It was intended that warnings should only be emitted for an
existing package.json without a type. This fixes a confusing
warning telling users to update /package.json when there are
no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module
because module syntax was detected; to avoid the performance penalty
of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about
reparsing and make it clear what's actionable.

PR-URL: nodejs#54045
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@marco-ippolito marco-ippolito added the backport-open-v22.x Indicate that the PR has an open backport label Aug 26, 2024
marco-ippolito pushed a commit to marco-ippolito/node that referenced this pull request Aug 26, 2024
It was intended that warnings should only be emitted for an
existing package.json without a type. This fixes a confusing
warning telling users to update /package.json when there are
no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module
because module syntax was detected; to avoid the performance penalty
of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about
reparsing and make it clear what's actionable.

PR-URL: nodejs#54045
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
marco-ippolito pushed a commit to marco-ippolito/node that referenced this pull request Aug 31, 2024
It was intended that warnings should only be emitted for an
existing package.json without a type. This fixes a confusing
warning telling users to update /package.json when there are
no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module
because module syntax was detected; to avoid the performance penalty
of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about
reparsing and make it clear what's actionable.

PR-URL: nodejs#54045
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
marco-ippolito pushed a commit to marco-ippolito/node that referenced this pull request Sep 2, 2024
It was intended that warnings should only be emitted for an
existing package.json without a type. This fixes a confusing
warning telling users to update /package.json when there are
no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module
because module syntax was detected; to avoid the performance penalty
of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about
reparsing and make it clear what's actionable.

PR-URL: nodejs#54045
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@joyeecheung joyeecheung removed dont-land-on-v20.x PRs that should not land on the v20.x-staging branch and should not be released in v20.x. backport-open-v22.x Indicate that the PR has an open backport labels Sep 5, 2024
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joyeecheung commented Sep 5, 2024

I think this should've been released before unflagging is done in v22.7.0, instead of waiting for that to happen first, because the funny error about missing type field in /package.json is showing up now when you try to load a loose esm.js:

$ node esm.js
16
(node:437463) [MODULE_TYPELESS_PACKAGE_JSON] Warning: file:///home/ubuntu/node/esm.js parsed as an ES module because module syntax was detected; to avoid the performance penalty of syntax detection, add "type": "module" to /package.json

aduh95 pushed a commit that referenced this pull request Sep 12, 2024
It was intended that warnings should only be emitted for an
existing package.json without a type. This fixes a confusing
warning telling users to update /package.json when there are
no package.json on the lookup path at all, like this:

[MODULE_TYPELESS_PACKAGE_JSON] Warning: ... parsed as an ES module
because module syntax was detected; to avoid the performance penalty
of syntax detection, add "type": "module" to /package.json

Drive-by: update the warning message to be clear about
reparsing and make it clear what's actionable.

PR-URL: #54045
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@RafaelGSS RafaelGSS mentioned this pull request Sep 16, 2024
@targos targos added the dont-land-on-v20.x PRs that should not land on the v20.x-staging branch and should not be released in v20.x. label Sep 22, 2024
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